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Interior Paint Formula:
The Interior Paint Calculator estimates the amount of paint needed for interior painting projects using Home Depot standards. It calculates paint requirements based on area, coverage rate, and number of coats.
The calculator uses the paint calculation formula:
Where:
Explanation: The formula divides the total area by the coverage rate to determine gallons per coat, then multiplies by the number of coats for the total paint requirement.
Details: Accurate paint calculation helps avoid waste, ensures you purchase the right amount of paint, and prevents project delays due to insufficient materials.
Tips: Measure wall area accurately, use the manufacturer's recommended coverage rate (typically 350-400 sq ft/gallon), and consider applying 2 coats for best results.
Q1: What is the standard coverage rate for interior paint?
A: Most interior paints cover 350-400 square feet per gallon. Check the paint can for specific coverage information.
Q2: How do I calculate wall area?
A: Measure wall height and length, then multiply: Area = Height × Length. Subtract windows and doors for accuracy.
Q3: Why are two coats usually recommended?
A: Two coats provide better coverage, uniform color, and longer-lasting results, especially when changing colors.
Q4: Should I buy extra paint for touch-ups?
A: Yes, it's recommended to buy 10-15% extra paint for touch-ups and future repairs.
Q5: Does paint type affect coverage?
A: Yes, premium paints often have better coverage and may require fewer coats than economy paints.